<!--
 * @Description: 
 * @Author: mxy
 * @Date: 2022-11-11 21:59:28
 * @LastEditors: mxy
 * @LastEditTime: 2022-11-11 22:06:30
-->
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>案例-头像上传</title>
  <link rel="stylesheet" href="./css/bootstrap.min.css">
  <style>
    .thumb-box {
      text-align: center;
      margin-top: 50px;
    }

    .thumb {
      width: 250px;
      height: 250px;
      object-fit: cover;
      border-radius: 50%;
    }
  </style>
</head>

<body>
  <div class="thumb-box">
    <!-- 头像 -->
    <img src="./images/cover.jpg" class="img-thumbnail thumb" alt="">
    <div class="mt-2">
      <!-- 文件选择框 -->
      <!-- accept 属性表示可选择的文件类型 -->
      <!-- image/* 表示只允许选择图片类型的文件 -->
      <input type="file" id="iptFile" accept="image/*" style="display: none;">
      <!-- 选择头像图片的按钮 -->
      <button class="btn btn-primary" id="btnChoose">选择 & 上传图片</button>
    </div>
  </div>

  <script src="./lib/axios.js"></script>
  <script>
    document.querySelector('#btnChoose').addEventListener('click', function () {
      document.querySelector('#iptFile').click()
    })

    document.querySelector('#iptFile').addEventListener('change', function () {
      if (this.files.length > 0) {
        let fileObj = this.files[0]
        if (fileObj.size > 100 * 1024) {
          return alert('图片不能超过100kb')
        }
        const arr = ['image/png', 'image/jpeg', 'image/gif']
        if (!arr.includes(fileObj.type)) {
          return alert('请选择正确格式图片')
        }
        let fd = new FormData()
        fd.append('avatar', fileObj)
        axios.post('http://www.itcbc.com:3006/api/formdata', fd).then(({ data }) => {
          document.querySelector('img').src = data.data.filename
        })
      }
    })
  </script>
</body>

</html>